package cn.saddyfire.pattern.proxy.cglib_proxy;

import net.sf.cglib.proxy.Enhancer;
import net.sf.cglib.proxy.MethodInterceptor;
import net.sf.cglib.proxy.MethodProxy;

import java.lang.reflect.Method;

/**
 * @author Dee
 * @date 2024/1/25
 * <p>Description:
 */
public class ProxyFactory implements MethodInterceptor {
    private TrainStation station = new TrainStation();
    public TrainStation getProxyObject() {
        //创建Enhancer对象, 类似于JDK代理中的Proxy类
        Enhancer enhancer = new Enhancer();
        //设置父类的字节码对象
        enhancer.setSuperclass(TrainStation.class);
        //设置回调函数
        enhancer.setCallback(this);
        //创建代理对象
        TrainStation proxyObject = (TrainStation) enhancer.create();
        return proxyObject;
    }

    @Override
    public Object intercept(Object o, Method method, Object[] objects, MethodProxy methodProxy) throws Throwable {
        System.out.println("代售点收取一定服务费(CGLib代理)");
        //调用目标方法
        method.invoke(station, objects);
        return null;
    }
}
